Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
For the given circuit of p-n junction diode which is correct :-
A
in forward bias the voltage across R is V
B
in reverse bias the voltage across R is V
C
in forward bias the voltage across R is 2V
D
in reverse bias the voltage across R is 2V.
Answer
in forward bias the voltage across R is V
Explanation
Solution
In forward biasing, the resistance of p-n junction diode is very low to the flow of current.
So practically all the voltage will be dropped across the resistance p, i.e. voltage across R will be V.
In reverse biasing, the resistance of p-n junction diode is very high. So the voltage drop across R is zero